Tragg regarded him with an air of detached interest, as though he were looking at some specimen in a glass case. Then he turned to regard Mason thoughtfully. Abruptly, he said, “Well, I’m sorry I disturbed you, Mr. Karr. I just had to complete my checkup. Just a matter of routine, you know. It probably won’t be necessary to bother you again. Sorry you’ve been having your troubles and hope I didn’t aggravate them too much.”

“Oh, that’s all right,” Karr said. “Like to talk with a man who has intelligence. Afraid some square-toed, brow-beating cop was going to come messing around here, asking a lot of damnfool questions. You’re all right. Come in any time.”

“Thanks,” Tragg said. “I’ll try and handle this end of it myself, so you won’t be meeting new people.”

“I’ll certainly appreciate that,” Karr said. “I will for a fact.”

“Now then,” Tragg went on in a deliberately casual manner, “how about Rodney Wenston? Does he...”

“Just a blind,” Karr interrupted. “He’s my stepson. Lives down toward the beach somewhere. I have the telephone in his name, and his name on the door. In fact, he rents the flat. I’ve done that deliberately so as to let myself stay in the background. When peddlers come here and ask for Mr. Wenston, we can tell them quite truthfully he’s out and we don’t know when he’ll be back. I don’t want to be annoyed with people. I use Wenston as a sort of buffer.”

Tragg appeared quite favorably impressed with the explanation. He nodded his head sympathetically and said, “I understand perfectly. Is there any particular reason why you are avoiding people, Mr. Karr?”

“There certainly is,” Karr snapped. “I’m a nervous man — irritable — highly irritable. The doctors tell me to conserve my nervous energy. I can’t do it when I meet people, particularly strangers. Strangers ask too damn many questions. Strangers get sympathetic. Strangers talk too damn much. Strangers come to visit and stay too long. I don’t like them.”

Tragg laughed good-naturedly, and said, “And, I take it, the fewer questions I ask and the shorter I make my stay, the more popular I’ll be?”

“Poppycock,” Karr exploded. “I didn’t mean you, didn’t mean you at all. You’re here on business.”